commons-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Luc Maisonobe (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (MATH-181) Specify the maximum of digits when parsing a Fraction
Date Fri, 01 Feb 2008 09:45:07 GMT

     [ https://issues.apache.org/jira/browse/MATH-181?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Luc Maisonobe resolved MATH-181.
--------------------------------

    Resolution: Fixed

fixed as of r617411

As proposed by Niall, the maxDenominatorDigit has been replaced by maxDenominator. This means
instead of 2 max digits, one should now provide 99 max denominator.

The call to reduce() has also been removed.

> Specify the maximum of digits when parsing a Fraction
> -----------------------------------------------------
>
>                 Key: MATH-181
>                 URL: https://issues.apache.org/jira/browse/MATH-181
>             Project: Commons Math
>          Issue Type: Improvement
>    Affects Versions: 1.1
>            Reporter: Niall Pemberton
>            Priority: Minor
>         Attachments: MATH-181-FractionDigitsLimit-v2.patch, MATH-181-FractionDigitsLimit.patch,
MATH-181-FractionMaxDenominator.patch
>
>
> Firstly, thanks for the Fraction code - I've adapated it for something I'm working on
and I didn't have a clue how to convert a decimal to a fraction :)
> Excel spreadsheets have the facility to specify a fraction format where you specify the
maximum number of denominator digits to display.
> So for example:
>     format "?/?" displays decimal values formatted in the range 1/2 to n/9
>     format "??/??" displays decimal values formatted in the range 1/2 to n/99
>     format "???/???" displays decimal values formatted in the range 1/2 to n/999 etc
> In excel then the value 0.6152 displays as 3/5, 8/13 and 510/829 respectively for the
above 3 formats.
> I'm attaching a patch for the Fraction class which adds a new constructor where the maximum
number of digits can be specified, rather than the epsilon value.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message